/* 默认样式修改 */
*,
*::after,
*::before {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
li {
  list-style: none;
}
/* 常见行内元素改为块级元素 */
a,
img,
span,
input,
button {
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  height: auto;
}
button{
  background: none;
  border: none;
}
.w{
  width: 90%;
  margin: 0 auto;
}
.w-100{
  width: 100%;
}
.relative{
  position: relative;
}
.absolute{
  position: absolute;
}
html {
  font-family: var(--ff-wryh);
  /* rem参照的基准值 */
  font-size: 10px;
  /* 让滚动条滑动更顺畅 */
  scroll-behavior: smooth;
}